I recently got tested for STD's. I got the results back and everything was negative. However, now I am worried that the results may have been inaccurate. I got tested about one week after the sexual
The only test results that are not accurate yet are Herpes and HIV. HIV takes 6+ weeks to get a relatively accurate result. Herpes can take 3-4 months. However, 50% of herpes positive results show up in 3-4 weeks.
Actually, the doxy (or any other antibiotic) could have given you a false negative result on the chlamydia and gonorrhea tests.
The other tests might not be accurate because you haven't waited the appropriate time. That's ok though. At least you have a baseline for them, and know you weren't infected before.
HIV can take up to 3 months, syphilis can take up to a month, herpes can take up to 4 months. For all of these, you might show positive before that time frame, but a week is pretty fast. Gonorrhea and chlamydia would show in a week, if you weren't on the antibiotics.